There is a new version of this mesh generator to facilitate the integration with third party software.

https://github.com/ssalinasfe/Polylla-Mesh-DCEL

New algorithm to generate polygonal meshes of arbitrary shape, using any kind of triangulation as input, adaptable to any kind of geometry, no addition of extra points and with a data structure tp an easy implementation to all language programmings.

The algorithm needs a triangulation as input, this triangulation is represent using 3 files:

• .node: Point file
• .ele: Triangle file
• .neigh: adjacency list

Example of use:

Calls to file with points:

./Polylla <node file> <ele file> <neigh file> <output filename>

The output is a <output filename>.off file, a <output filename>.svg file and a <output filename>.json file with the metrics of the mesh.

Following scripts to generate input files were made to test the algorithm using the Virtual Element Method

• 2x2RandomPoints.py: Generate random points inside a square 2x2

• R2DiskRandom.py: Generate a PLSG of a circle of radio 2 with random points inside of it
• 2x2Lrandom.py: Generate a PLSG with L-shape with random points inside of it
• 2x2QuaterCircle.py: Generate a PLSG in a square of 2x2 with a quartercircle of radio 0.4 in the left botton corner and random points inside of it

• R2DiskSemiuniform.py: Generate a semiuniform triangulation in a disk of radio 2
• 2x2QuaterCircleUniform.py: Generate a semi Uniform triangulation inside a square of 2x2 with a quartercircle of radio 0.4 in the left botton corner.
• Luniform: Generate a semi uniform triangulation with L-shape

• Agregar que acepte cualquier input mientras que tengan un archivo .node. .ele, -neigh
• Cambiar stream de archivo por stream de string en la funcion read_from_triangle
• Verificar la estructura de datos del input para que haya una correcta asociación de los triangulos y la adjacencia
• Aceptar como input .node and .ele y generar la adjacencia en base a eso.
• Usar safe arrays en vez de array
• Cambiar polygon array por list o vector
• Eliminar funciones no usadas
• Reescribir todo y encapsularlo en una clase para usarlo como librería
• Llamar a triangle en vez de a detri2 cuadno solo se tenga de input un .node (detri no genera triangulaciones de más 10^6 puntos)
• Generar como output un svg
• Construir test